FILE - In this Sunday, Oct. 21, 2018, file photo, Los Angeles Chargers wide receiver Tyrell Williams (16) celebrates as he scores a touchdown during the first half of an NFL football game against the Tennessee Titans at Wembley stadium in London. On Tuesday, April 16, 2019, the Chargers announced they will wear their historic powder-blue jerseys as their primary home uniforms in the upcoming season. (AP Photo/Matt Dunham, File)

FILE - In this Sunday, Oct. 21, 2018, file photo, Los Angeles Chargers players celebrate after making a turnover during the first half of an NFL football game against the Tennessee Titans at Wembley stadium in London. On Tuesday, April 16, 2019, the Chargers announced they will wear their historic powder-blue jerseys as their primary home uniforms in the upcoming season. (AP Photo/Matt Dunham, File)

FILE - In this Oct. 21, 2018, file photo, Los Angeles Chargers offensive tackle Russell Okung (76) raises his first as the national anthem is played before an NFL football game against Tennessee Titans at Wembley stadium in London. Chargers offensive lineman Russell Okung will miss most of training camp due to blood clots. The veteran left tackle revealed Thursday, July 25, 2019, on Twitter that he experienced chest pains during an offseason practice at the team facility in June. Okung said he went to an urgent care and that tests revealed he suffered a pulmonary embolism.(AP Photo/Tim Ireland, File)

FILE - In this Oct. 21, 2018, file photo, cheerleaders line up before an NFL football game between Tennessee Titans and the Los Angeles Chargers at Wembley Stadium in London. As the league celebrates its 100th season, it continues to expand its foreign footprint with five international games in 2019. Four are in London, including two at Wembley Stadium, and the league returns to Mexico. (AP Photo/Matt Dunham, File)